Polygons of dunes
Hills, boulders, and wind
June 17, 2013Pale gold satin sand
June 26, 2013
A piece of Mars: Yep, these are dunes shaped into polygons. Each “cell” is about 25 m (~80 ft) across. The crests of these things are outlined in blue, as if somebody traced them with a pen (well it’s stretched to look blue, but it’s really more of a grayish color). These don’t look like typical dunes — they were formed in a place where the wind blows from many different directions, so it’s tough to tell what winds formed them. (ESP_031138_1380, NASA/JPL/University of Arizona)
5 Comments
Very like tundra polygons – high ridges with internal hollows, or sometimes vice versa…
Looks like a tray of toasted mini marshmallows.. Chunk ‘o chocolate and a graham cracker?
Sounds great! But you’re seeing it upside down. The white areas with thin blue lines are the topographic highs. Too bad, or I’d start calling it “marshmallow terrain”. 🙂
Interesting
Looks like a Sponge!! With Regards,Dave:-)